@Kronshi Eisenkiesel and Ferruginous Quartz are usually synonyms with each other; Eisenkiesel just usually refers to the fully colored variety while Ferruginous Quartz usually refer to both fully and not fully colored; otherwise, same gem, different name. Like Vesuvianite and Idocrase; same gem, different name. Or Bloodstone and Heliotrope. And again, GM's call and all, but /many/ gems are a type of Quartz. Amethyst, one of the main canons, is a type of Quartz. Jasper is also a type of Quartz. And there's also Rainbow Quartz. So I'm not really sure it's a problem in my eyes. He'd rather it be called Eisenkiesel, I just put both names to make it easier to recognize in case you knew one name rather than the other; if it's just the name that bothers you, it's cool because he's going with Eisenkiesel as the name nonetheless. If it's the actual gem...Ye. Even Bloodstone, being a type of Chalcedony, is also a form of Quartz. ^ ^"